Fairly sure it’s because of the difference in environment. Gut bacteria tend to be anaerobic fermenting species, whereas the external part and blood are more aerobic. It’s been a while since i did physiology and microbio tho, someone correct me if I’m wrong.
Fairly sure it’s because of the difference in environment. Gut bacteria tend to be anaerobic fermenting species, whereas the external part and blood are more aerobic. It’s been a while since i did physiology and microbio tho, someone correct me if I’m wrong.